$A$ clock takes $9$ seconds to strike $4$ times. In order to strike $12$ times at the same rate,the time taken is (in $seconds$)

India got independence on August $15, 1947$. What was the day of the week?

Number of times the hands of a clock are in a straight line everyday is

At what time between $3$ and $4$ o'clock are the hands of a clock together?

Between $1$ hour and $12$ hours,how many times will the hour hand and minute hand be together? (in times)

The watch which gains uniformly is $2$ minutes slow at noon on Sunday and is $4$ minutes $48$ seconds fast at $2$ $pm$ on the following Sunday. When was the watch correct?